diff --git a/README.md b/README.md
index 877445de..bcf494e4 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 <a href="https://crates.io/crates/spl-memo"><img src="https://img.shields.io/crates/v/spl-memo?logo=rust" /></a>
 [![Docs.rs](https://docs.rs/spl-memo/badge.svg?logo=rust)]
 <a href="https://crates.io/crates/spl-memo-client"><img src="https://img.shields.io/crates/v/spl-memo-client?logo=rust" /></a>
-<a href="https://explorer.solana.com/address/MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr"><img src="https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fraw.githubusercontent.com%2Fsolana-program%2Fmemo%2Fmain%2Fidl.json&query=%24.version&label=program&logo=data:image/svg%2bxml;base64,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&color=9945FF" /></a>
+<a href="https://explorer.solana.com/address/Memo4c2pN8afCj432Lb7RMVKi9PbQnnW7ewFFaV3oAH"><img src="https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fraw.githubusercontent.com%2Fsolana-program%2Fmemo%2Fmain%2Fidl.json&query=%24.version&label=program&logo=data:image/svg%2bxml;base64,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&color=9945FF" /></a>
 <a href="https://www.npmjs.com/package/@solana-program/memo"><img src="https://img.shields.io/npm/v/%40solana-program%2Fmemo?logo=npm&color=377CC0" /></a>
 
 A simple program that validates a string of UTF-8 encoded characters and logs it
diff --git a/clients/js-legacy/src/index.ts b/clients/js-legacy/src/index.ts
index 67f2c12a..f21cc7e3 100644
--- a/clients/js-legacy/src/index.ts
+++ b/clients/js-legacy/src/index.ts
@@ -1,7 +1,7 @@
 import { Buffer } from 'buffer';
 import { PublicKey, TransactionInstruction } from '@solana/web3.js';
 
-export const MEMO_PROGRAM_ID: PublicKey = new PublicKey('MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr');
+export const MEMO_PROGRAM_ID: PublicKey = new PublicKey('Memo4c2pN8afCj432Lb7RMVKi9PbQnnW7ewFFaV3oAH');
 
 /**
  * Creates and returns an instruction which validates a string of UTF-8
diff --git a/clients/js/src/generated/programs/memo.ts b/clients/js/src/generated/programs/memo.ts
index ab3e4d02..897d7c73 100644
--- a/clients/js/src/generated/programs/memo.ts
+++ b/clients/js/src/generated/programs/memo.ts
@@ -17,13 +17,13 @@ import { addSelfPlanAndSendFunctions, type SelfPlanAndSendFunctions } from '@sol
 import { getAddMemoInstruction, type AddMemoInput, type ParsedAddMemoInstruction } from '../instructions';
 
 export const MEMO_PROGRAM_ADDRESS =
-    'MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr' as Address<'MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr'>;
+    'Memo4c2pN8afCj432Lb7RMVKi9PbQnnW7ewFFaV3oAH' as Address<'Memo4c2pN8afCj432Lb7RMVKi9PbQnnW7ewFFaV3oAH'>;
 
 export enum MemoInstruction {
     AddMemo,
 }
 
-export type ParsedMemoInstruction<TProgram extends string = 'MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr'> = {
+export type ParsedMemoInstruction<TProgram extends string = 'Memo4c2pN8afCj432Lb7RMVKi9PbQnnW7ewFFaV3oAH'> = {
     instructionType: MemoInstruction.AddMemo;
 } & ParsedAddMemoInstruction<TProgram>;
 
diff --git a/clients/rust/src/generated/programs.rs b/clients/rust/src/generated/programs.rs
index 11d24694..2cb87f2e 100644
--- a/clients/rust/src/generated/programs.rs
+++ b/clients/rust/src/generated/programs.rs
@@ -8,4 +8,4 @@
 use solana_address::{address, Address};
 
 /// `memo` program ID.
-pub const MEMO_ID: Address = address!("MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr");
+pub const MEMO_ID: Address = address!("Memo4c2pN8afCj432Lb7RMVKi9PbQnnW7ewFFaV3oAH");
diff --git a/idl.json b/idl.json
index 54a224a7..3fb22f06 100644
--- a/idl.json
+++ b/idl.json
@@ -43,8 +43,8 @@
     "errors": [],
     "name": "memo",
     "prefix": "",
-    "publicKey": "MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr",
-    "version": "3.0.1",
+    "publicKey": "Memo4c2pN8afCj432Lb7RMVKi9PbQnnW7ewFFaV3oAH",
+    "version": "4.0.0",
     "origin": "shank"
   },
   "additionalPrograms": [],
diff --git a/scripts/restart-test-validator.sh b/scripts/restart-test-validator.sh
index b4f2c9f4..f6495170 100755
--- a/scripts/restart-test-validator.sh
+++ b/scripts/restart-test-validator.sh
@@ -7,7 +7,7 @@ cd "${src_root}"
 ARGS=(
   -r
   -q
-  --bpf-program MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr ./target/deploy/pinocchio_memo_program.so
+  --bpf-program Memo4c2pN8afCj432Lb7RMVKi9PbQnnW7ewFFaV3oAH ./target/deploy/pinocchio_memo_program.so
 )
 PORT=8899
 PID=$(lsof -t -i:$PORT)